Neutrophils are the most common type of white blood cell, comprising about 50-70% of all white blood cells. They are phagocytic, meaning that they can ingest other cells, though they do not survive the act. Neutrophils are the first immune cells to arrive at a site of infection, through a process known as chemotaxis.
One of the basic theories stipulates that increasing interest rates raise consumers' and manufacturers' costs, which, in turn, reduces the amount of time and money people spend driving. Less people on the road translates to less demand for oil, which can cause oil prices to drop.
Oil rig count plays an essential part in future oil prices. There are plenty of good ways to invest in this cyclical business. Recently, many people have noticed the rapidly rise in oil prices. In fact, since mid-march, oil prices have logged gains of roughly 30% - representing almost two months of straight gains. However, before this oil price increase, many also saw consistent news reports explaining how rapidly oil rig counts were dropping.